Improvement in composition for forming cement, mortar coatings for walls



Filaments,

COATING 0R PLASTIC.

UNITED STATES IMPROVEMENT IN COMPOSITION FOR FORMING CEMENT, MORTAR COATINGS FOR WALLS, dc.

Specification forming part of Letters Patent No. 209,770 dated November 12 1878; application filed MW g To all whom it may concern: Be it known that I, EMIL MEYER, of K6- penick, near Berlin, in the Kingdom of Prussin, German Empire, have invented an Im- 5'' proved Mixture or Composition for Castings, Cements, and Coatings, of which the following is a specification:

This invention is based upon the intimate combination which takes place in a cold state I 0 between an alkaline silicate-that is to say, water-glassin presence of water and fluorides of metals.

This invention is applicable in several ways.

I em r-siar c olite or generally the i 7 I er, either alone r g *1 pulvetizedlnin- W c e s, in connection Jvith water- 1 I a der or solution of various degrees of cencen ration. First, I mix the matters together, in equal or other proportion, into a thick or a thin fluid QLMWZWW paste, with or without water, and then run it 5,. into molds or into joints, or spread it over surfaces; second, I may apply the said ingredients separately and alternately, the one after the other.

According to the nature of the application, I add mineral poxvdenor colors of any kind to the Egg-spar and to the soluble lass, to prevent the shrinking of the casting, E0 111- crease the adhesiveness, the strength, and the hardness of the product, and to provide coatings of any desired shade in durable colors. The solution of water-glass will be of more or less strength, according to the porosity of the objects or articles to be treated.

PATENT OEEIcE.

* Examiner The invention may be used for the making of durable castings, as cement, for closing joints or causing adhesion of substances, and also as a covering of wood, pasteboard, masonry, @etals/ or the like, to protect the same against atmospheric influences.

Fog use as a covering I prefer to first apply} g the no -s ar mixed with water or ilk o lime To the surface to be protected, and alter I this first coat is dry to cover it with coucentrated solution of g ater-glass.

For t e proc action 0 casings I apply a mixture of powdered finer-spar and concentra ted water-glass with a brush to the inner side of the mold, made preferably of glue charged with glycerine, and to throw a thin layer of sand upon'the moist coating. Afterv this dries'Iapply another coat of the 'mixture with a brush, throw in sand, and continue un til the desired thickness has been obtained.

The proportions of the ingredients used may be varied, and should be regulated according to the purpose to which the mixture is to be applied in each instance.

1 claim as myinvention and desire to secure by Letters Patent-- The combination and composition of fluorspar in a cold state with water-glass in presence of water, for making castings, cements, or coatings, substantially as specified.

This specification signed by me this the 3d day of May, 1878.

EMIL MEYER.

Witnesses: FRIEDRICH CARL GLAsER, BERTHOLD R01. 

